X509CertSelector

public class X509CertSelector extends Object
implements CertSelector

A CertSelector that selects X509Certificates that match all specified criteria. This class is particularly useful when selecting certificates from a CertStore to build a PKIX-compliant certification path.

When first constructed, an X509CertSelector has no criteria enabled and each of the get methods return a default value (null, or -1 for the getBasicConstraints method). Therefore, the match method would return true for any X509Certificate. Typically, several criteria are enabled (by calling setIssuer or setKeyUsage, for instance) and then the X509CertSelector is passed to CertStore.getCertificates or some similar method.

Several criteria can be enabled (by calling setIssuer and setSerialNumber, for example) such that the match method usually uniquely matches a single X509Certificate. We say usually, since it is possible for two issuing CAs to have the same distinguished name and each issue a certificate with the same serial number. Other unique combinations include the issuer, subject, subjectKeyIdentifier and/or the subjectPublicKey criteria.

Please refer to RFC 3280: Internet X.509 Public Key Infrastructure Certificate and CRL Profile for definitions of the X.509 certificate extensions mentioned below.

Concurrent Access

Unless otherwise specified, the methods defined in this class are not thread-safe. Multiple threads that need to access a single object concurrently should synchronize amongst themselves and provide the necessary locking. Multiple threads each manipulating separate objects need not synchronize.

See Also

• CertSelector
• X509Certificate

Public Constructor Summary

X509CertSelector() Creates an X509CertSelector.

Public Method Summary

void	addPathToName(int type, String name) Adds a name to the pathToNames criterion.
void	addPathToName(int type, byte[] name) Adds a name to the pathToNames criterion.
void	addSubjectAlternativeName(int type, String name) Adds a name to the subjectAlternativeNames criterion.
void	addSubjectAlternativeName(int type, byte[] name) Adds a name to the subjectAlternativeNames criterion.
Object	clone() Returns a copy of this object.
byte[]	getAuthorityKeyIdentifier() Returns the authorityKeyIdentifier criterion.
int	getBasicConstraints() Returns the basic constraints constraint.
X509Certificate	getCertificate() Returns the certificateEquals criterion.
Date	getCertificateValid() Returns the certificateValid criterion.
Set<String>	getExtendedKeyUsage() Returns the extendedKeyUsage criterion.
X500Principal	getIssuer() Returns the issuer criterion as an X500Principal.
byte[]	getIssuerAsBytes() Returns the issuer criterion as a byte array.
String	getIssuerAsString() Denigrated, use {@linkplain #getIssuer()} or {@linkplain #getIssuerAsBytes()} instead.
boolean[]	getKeyUsage() Returns the keyUsage criterion.
boolean	getMatchAllSubjectAltNames() Indicates if the X509Certificate must contain all or at least one of the subjectAlternativeNames specified in the setSubjectAlternativeNames or addSubjectAlternativeName methods.
byte[]	getNameConstraints() Returns the name constraints criterion.
Collection<List<?>>	getPathToNames() Returns a copy of the pathToNames criterion.
Set<String>	getPolicy() Returns the policy criterion.
Date	getPrivateKeyValid() Returns the privateKeyValid criterion.
BigInteger	getSerialNumber() Returns the serialNumber criterion.
X500Principal	getSubject() Returns the subject criterion as an X500Principal.
Collection<List<?>>	getSubjectAlternativeNames() Returns a copy of the subjectAlternativeNames criterion.
byte[]	getSubjectAsBytes() Returns the subject criterion as a byte array.
String	getSubjectAsString() Denigrated, use {@linkplain #getSubject()} or {@linkplain #getSubjectAsBytes()} instead.
byte[]	getSubjectKeyIdentifier() Returns the subjectKeyIdentifier criterion.
PublicKey	getSubjectPublicKey() Returns the subjectPublicKey criterion.
String	getSubjectPublicKeyAlgID() Returns the subjectPublicKeyAlgID criterion.
boolean	match(Certificate cert) Decides whether a Certificate should be selected.
void	setAuthorityKeyIdentifier(byte[] authorityKeyID) Sets the authorityKeyIdentifier criterion.
void	setBasicConstraints(int minMaxPathLen) Sets the basic constraints constraint.
void	setCertificate(X509Certificate cert) Sets the certificateEquals criterion.
void	setCertificateValid(Date certValid) Sets the certificateValid criterion.
void	setExtendedKeyUsage(Set<String> keyPurposeSet) Sets the extendedKeyUsage criterion.
void	setIssuer(byte[] issuerDN) Sets the issuer criterion.
void	setIssuer(X500Principal issuer) Sets the issuer criterion.
void	setIssuer(String issuerDN) Denigrated, use {@linkplain #setIssuer(X500Principal)} or {@linkplain #setIssuer(byte[])} instead.
void	setKeyUsage(boolean[] keyUsage) Sets the keyUsage criterion.
void	setMatchAllSubjectAltNames(boolean matchAllNames) Enables/disables matching all of the subjectAlternativeNames specified in the setSubjectAlternativeNames or addSubjectAlternativeName methods.
void	setNameConstraints(byte[] bytes) Sets the name constraints criterion.
void	setPathToNames(Collection<List<?>> names) Sets the pathToNames criterion.
void	setPolicy(Set<String> certPolicySet) Sets the policy constraint.
void	setPrivateKeyValid(Date privateKeyValid) Sets the privateKeyValid criterion.
void	setSerialNumber(BigInteger serial) Sets the serialNumber criterion.
void	setSubject(X500Principal subject) Sets the subject criterion.
void	setSubject(byte[] subjectDN) Sets the subject criterion.
void	setSubject(String subjectDN) Denigrated, use {@linkplain #setSubject(X500Principal)} or {@linkplain #setSubject(byte[])} instead.
void	setSubjectAlternativeNames(Collection<List<?>> names) Sets the subjectAlternativeNames criterion.
void	setSubjectKeyIdentifier(byte[] subjectKeyID) Sets the subjectKeyIdentifier criterion.
void	setSubjectPublicKey(byte[] key) Sets the subjectPublicKey criterion.
void	setSubjectPublicKey(PublicKey key) Sets the subjectPublicKey criterion.
void	setSubjectPublicKeyAlgID(String oid) Sets the subjectPublicKeyAlgID criterion.
String	toString() Return a printable representation of the CertSelector.

Inherited Method Summary

From class java.lang.Object

Object	clone() Creates and returns a copy of this Object.
boolean	equals(Object obj) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of Class that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long timeout, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait(long timeout) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

From interface java.security.cert.CertSelector

abstract Object	clone() Makes a copy of this CertSelector.
abstract boolean	match(Certificate cert) Decides whether a Certificate should be selected.

Public Constructors

public X509CertSelector ()

Creates an X509CertSelector. Initially, no criteria are set so any X509Certificate will match.

Public Methods

public void addPathToName (int type, String name)

Adds a name to the pathToNames criterion. The X509Certificate must not include name constraints that would prohibit building a path to the specified name.

This method allows the caller to add a name to the set of names which the X509Certificates's name constraints must permit. The specified name is added to any previous value for the pathToNames criterion. If the name is a duplicate, it may be ignored.

The name is provided in string format. RFC 822, DNS, and URI names use the well-established string formats for those types (subject to the restrictions included in RFC 3280). IPv4 address names are supplied using dotted quad notation. OID address names are represented as a series of nonnegative integers separated by periods. And directory names (distinguished names) are supplied in RFC 2253 format. No standard string format is defined for otherNames, X.400 names, EDI party names, IPv6 address names, or any other type of names. They should be specified using the addPathToName(int type, byte [] name) method.

Note: for distinguished names, use {@linkplain #addPathToName(int, byte[])} instead. This method should not be relied on as it can fail to match some certificates because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

Parameters

type	the name type (0-8, as specified in RFC 3280, section 4.2.1.7)
name	the name in string form

Throws

IOException	if a parsing error occurs

public void addPathToName (int type, byte[] name)

Adds a name to the pathToNames criterion. The X509Certificate must not include name constraints that would prohibit building a path to the specified name.

This method allows the caller to add a name to the set of names which the X509Certificates's name constraints must permit. The specified name is added to any previous value for the pathToNames criterion. If the name is a duplicate, it may be ignored.

The name is provided as a byte array. This byte array should contain the DER encoded name, as it would appear in the GeneralName structure defined in RFC 3280 and X.509. The ASN.1 definition of this structure appears in the documentation for addSubjectAlternativeName(int type, byte [] name).

Note that the byte array supplied here is cloned to protect against subsequent modifications.

Parameters

type	the name type (0-8, as specified in RFC 3280, section 4.2.1.7)
name	a byte array containing the name in ASN.1 DER encoded form

Throws

IOException	if a parsing error occurs

public void addSubjectAlternativeName (int type, String name)

Adds a name to the subjectAlternativeNames criterion. The X509Certificate must contain all or at least one of the specified subjectAlternativeNames, depending on the value of the matchAllNames flag (see setMatchAllSubjectAltNames).

This method allows the caller to add a name to the set of subject alternative names. The specified name is added to any previous value for the subjectAlternativeNames criterion. If the specified name is a duplicate, it may be ignored.

The name is provided in string format. RFC 822, DNS, and URI names use the well-established string formats for those types (subject to the restrictions included in RFC 3280). IPv4 address names are supplied using dotted quad notation. OID address names are represented as a series of nonnegative integers separated by periods. And directory names (distinguished names) are supplied in RFC 2253 format. No standard string format is defined for otherNames, X.400 names, EDI party names, IPv6 address names, or any other type of names. They should be specified using the addSubjectAlternativeName(int type, byte [] name) method.

Note: for distinguished names, use {@linkplain #addSubjectAlternativeName(int, byte[])} instead. This method should not be relied on as it can fail to match some certificates because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

Parameters

type	the name type (0-8, as specified in RFC 3280, section 4.2.1.7)
name	the name in string form (not null)

Throws

IOException	if a parsing error occurs

public void addSubjectAlternativeName (int type, byte[] name)

Adds a name to the subjectAlternativeNames criterion. The X509Certificate must contain all or at least one of the specified subjectAlternativeNames, depending on the value of the matchAllNames flag (see setMatchAllSubjectAltNames).

This method allows the caller to add a name to the set of subject alternative names. The specified name is added to any previous value for the subjectAlternativeNames criterion. If the specified name is a duplicate, it may be ignored.

The name is provided as a byte array. This byte array should contain the DER encoded name, as it would appear in the GeneralName structure defined in RFC 3280 and X.509. The encoded byte array should only contain the encoded value of the name, and should not include the tag associated with the name in the GeneralName structure. The ASN.1 definition of this structure appears below.

GeneralName ::= CHOICE {
       otherName                       [0]     OtherName,
       rfc822Name                      [1]     IA5String,
       dNSName                         [2]     IA5String,
       x400Address                     [3]     ORAddress,
       directoryName                   [4]     Name,
       ediPartyName                    [5]     EDIPartyName,
       uniformResourceIdentifier       [6]     IA5String,
       iPAddress                       [7]     OCTET STRING,
       registeredID                    [8]     OBJECT IDENTIFIER}
 

Note that the byte array supplied here is cloned to protect against subsequent modifications.

Parameters

type	the name type (0-8, as listed above)
name	a byte array containing the name in ASN.1 DER encoded form

Throws

IOException	if a parsing error occurs

public Object clone ()

Returns a copy of this object.

Returns

• the copy

public byte[] getAuthorityKeyIdentifier ()

Returns the authorityKeyIdentifier criterion. The X509Certificate must contain a AuthorityKeyIdentifier extension with the specified value. If null, no authorityKeyIdentifier check will be done.

Note that the byte array returned is cloned to protect against subsequent modifications.

Returns

• the key identifier (or null)

See Also

• setAuthorityKeyIdentifier(byte[])

public int getBasicConstraints ()

Returns the basic constraints constraint. If the value is greater than or equal to zero, the X509Certificates must include a basicConstraints extension with a pathLen of at least this value. If the value is -2, only end-entity certificates are accepted. If the value is -1, no basicConstraints check is done.

Returns

• the value for the basic constraints constraint

See Also

• setBasicConstraints(int)

public X509Certificate getCertificate ()

Returns the certificateEquals criterion. The specified X509Certificate must be equal to the X509Certificate passed to the match method. If null, this check is not applied.

Returns

• the X509Certificate to match (or null)

See Also

• setCertificate(X509Certificate)

public Date getCertificateValid ()

Returns the certificateValid criterion. The specified date must fall within the certificate validity period for the X509Certificate. If null, no certificateValid check will be done.

Note that the Date returned is cloned to protect against subsequent modifications.

Returns

• the Date to check (or null)

See Also

• setCertificateValid(Date)

public Set<String> getExtendedKeyUsage ()

Returns the extendedKeyUsage criterion. The X509Certificate must allow the specified key purposes in its extended key usage extension. If the keyPurposeSet returned is empty or null, no extendedKeyUsage check will be done. Note that an X509Certificate that has no extendedKeyUsage extension implicitly allows all key purposes.

Returns

• an immutable Set of key purpose OIDs in string format (or null)

See Also

• setExtendedKeyUsage(Set)

public X500Principal getIssuer ()

Returns the issuer criterion as an X500Principal. This distinguished name must match the issuer distinguished name in the X509Certificate. If null, the issuer criterion is disabled and any issuer distinguished name will do.

Returns

• the required issuer distinguished name as X500Principal (or null)

public byte[] getIssuerAsBytes ()

Returns the issuer criterion as a byte array. This distinguished name must match the issuer distinguished name in the X509Certificate. If null, the issuer criterion is disabled and any issuer distinguished name will do.

If the value returned is not null, it is a byte array containing a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure is supplied in the documentation for setIssuer(byte [] issuerDN).

Note that the byte array returned is cloned to protect against subsequent modifications.

Returns

• a byte array containing the required issuer distinguished name in ASN.1 DER format (or null)

Throws

IOException	if an encoding error occurs

public String getIssuerAsString ()

Denigrated, use {@linkplain #getIssuer()} or {@linkplain #getIssuerAsBytes()} instead. This method should not be relied on as it can fail to match some certificates because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

Returns the issuer criterion as a String. This distinguished name must match the issuer distinguished name in the X509Certificate. If null, the issuer criterion is disabled and any issuer distinguished name will do.

If the value returned is not null, it is a distinguished name, in RFC 2253 format.

Returns

• the required issuer distinguished name in RFC 2253 format (or null)

public boolean[] getKeyUsage ()

Returns the keyUsage criterion. The X509Certificate must allow the specified keyUsage values. If null, no keyUsage check will be done.

Note that the boolean array returned is cloned to protect against subsequent modifications.

Returns

• a boolean array in the same format as the boolean array returned by X509Certificate.getKeyUsage(). Or null.

See Also

• setKeyUsage(boolean[])

public boolean getMatchAllSubjectAltNames ()

Indicates if the X509Certificate must contain all or at least one of the subjectAlternativeNames specified in the setSubjectAlternativeNames or addSubjectAlternativeName methods. If true, the X509Certificate must contain all of the specified subject alternative names. If false, the X509Certificate must contain at least one of the specified subject alternative names.

Returns

• true if the flag is enabled; false if the flag is disabled. The flag is true by default.

See Also

• setMatchAllSubjectAltNames(boolean)

public byte[] getNameConstraints ()

Returns the name constraints criterion. The X509Certificate must have subject and subject alternative names that meet the specified name constraints.

The name constraints are returned as a byte array. This byte array contains the DER encoded form of the name constraints, as they would appear in the NameConstraints structure defined in RFC 3280 and X.509. The ASN.1 notation for this structure is supplied in the documentation for setNameConstraints(byte [] bytes).

Note that the byte array returned is cloned to protect against subsequent modifications.

Returns

• a byte array containing the ASN.1 DER encoding of a NameConstraints extension used for checking name constraints. null if no name constraints check will be performed.

See Also

• setNameConstraints(byte[])

public Collection<List<?>> getPathToNames ()

Returns a copy of the pathToNames criterion. The X509Certificate must not include name constraints that would prohibit building a path to the specified names. If the value returned is null, no pathToNames check will be performed.

If the value returned is not null, it is a Collection with one entry for each name to be included in the pathToNames criterion. Each entry is a List whose first entry is an Integer (the name type, 0-8) and whose second entry is a String or a byte array (the name, in string or ASN.1 DER encoded form, respectively). There can be multiple names of the same type. Note that the Collection returned may contain duplicate names (same name and name type).

Each name in the Collection may be specified either as a String or as an ASN.1 encoded byte array. For more details about the formats used, see addPathToName(int type, String name) and addPathToName(int type, byte [] name).

Note that a deep copy is performed on the Collection to protect against subsequent modifications.

Returns

• a Collection of names (or null)

See Also

• setPathToNames(Collection>)

public Set<String> getPolicy ()

Returns the policy criterion. The X509Certificate must include at least one of the specified policies in its certificate policies extension. If the Set returned is empty, then the X509Certificate must include at least some specified policy in its certificate policies extension. If the Set returned is null, no policy check will be performed.

Returns

• an immutable Set of certificate policy OIDs in string format (or null)

See Also

• setPolicy(Set)

public Date getPrivateKeyValid ()

Returns the privateKeyValid criterion. The specified date must fall within the private key validity period for the X509Certificate. If null, no privateKeyValid check will be done.

Note that the Date returned is cloned to protect against subsequent modifications.

Returns

• the Date to check (or null)

See Also

• setPrivateKeyValid(Date)

public BigInteger getSerialNumber ()

Returns the serialNumber criterion. The specified serial number must match the certificate serial number in the X509Certificate. If null, any certificate serial number will do.

Returns

• the certificate serial number to match (or null)

See Also

• setSerialNumber(BigInteger)

public X500Principal getSubject ()

Returns the subject criterion as an X500Principal. This distinguished name must match the subject distinguished name in the X509Certificate. If null, the subject criterion is disabled and any subject distinguished name will do.

Returns

• the required subject distinguished name as X500Principal (or null)

public Collection<List<?>> getSubjectAlternativeNames ()

Returns a copy of the subjectAlternativeNames criterion. The X509Certificate must contain all or at least one of the specified subjectAlternativeNames, depending on the value of the matchAllNames flag (see getMatchAllSubjectAltNames). If the value returned is null, no subjectAlternativeNames check will be performed.

If the value returned is not null, it is a Collection with one entry for each name to be included in the subject alternative name criterion. Each entry is a List whose first entry is an Integer (the name type, 0-8) and whose second entry is a String or a byte array (the name, in string or ASN.1 DER encoded form, respectively). There can be multiple names of the same type. Note that the Collection returned may contain duplicate names (same name and name type).

Each subject alternative name in the Collection may be specified either as a String or as an ASN.1 encoded byte array. For more details about the formats used, see addSubjectAlternativeName(int type, String name) and addSubjectAlternativeName(int type, byte [] name).

Note that a deep copy is performed on the Collection to protect against subsequent modifications.

Returns

• a Collection of names (or null)

See Also

• setSubjectAlternativeNames(Collection>)

public byte[] getSubjectAsBytes ()

Returns the subject criterion as a byte array. This distinguished name must match the subject distinguished name in the X509Certificate. If null, the subject criterion is disabled and any subject distinguished name will do.

If the value returned is not null, it is a byte array containing a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure is supplied in the documentation for setSubject(byte [] subjectDN).

Note that the byte array returned is cloned to protect against subsequent modifications.

Returns

• a byte array containing the required subject distinguished name in ASN.1 DER format (or null)

Throws

IOException	if an encoding error occurs

public String getSubjectAsString ()

Denigrated, use {@linkplain #getSubject()} or {@linkplain #getSubjectAsBytes()} instead. This method should not be relied on as it can fail to match some certificates because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

Returns the subject criterion as a String. This distinguished name must match the subject distinguished name in the X509Certificate. If null, the subject criterion is disabled and any subject distinguished name will do.

If the value returned is not null, it is a distinguished name, in RFC 2253 format.

Returns

• the required subject distinguished name in RFC 2253 format (or null)

public byte[] getSubjectKeyIdentifier ()

Returns the subjectKeyIdentifier criterion. The X509Certificate must contain a SubjectKeyIdentifier extension with the specified value. If null, no subjectKeyIdentifier check will be done.

Note that the byte array returned is cloned to protect against subsequent modifications.

Returns

• the key identifier (or null)

See Also

• setSubjectKeyIdentifier(byte[])

public PublicKey getSubjectPublicKey ()

Returns the subjectPublicKey criterion. The X509Certificate must contain the specified subject public key. If null, no subjectPublicKey check will be done.

Returns

• the subject public key to check for (or null)

See Also

• setSubjectPublicKey(byte[])

public String getSubjectPublicKeyAlgID ()

Returns the subjectPublicKeyAlgID criterion. The X509Certificate must contain a subject public key with the specified algorithm. If null, no subjectPublicKeyAlgID check will be done.

Returns

• the object identifier (OID) of the signature algorithm to check for (or null). An OID is represented by a set of nonnegative integers separated by periods.

See Also

• setSubjectPublicKeyAlgID(String)

public boolean match (Certificate cert)

Decides whether a Certificate should be selected.

Parameters

cert	the Certificate to be checked

Returns

• true if the Certificate should be selected, false otherwise

public void setAuthorityKeyIdentifier (byte[] authorityKeyID)

Sets the authorityKeyIdentifier criterion. The X509Certificate must contain an AuthorityKeyIdentifier extension for which the contents of the extension value matches the specified criterion value. If the criterion value is null, no authorityKeyIdentifier check will be done.

If authorityKeyID is not null, it should contain a single DER encoded value corresponding to the contents of the extension value (not including the object identifier, criticality setting, and encapsulating OCTET STRING) for an AuthorityKeyIdentifier extension. The ASN.1 notation for this structure follows.

AuthorityKeyIdentifier ::= SEQUENCE {
    keyIdentifier             [0] KeyIdentifier           OPTIONAL,
    authorityCertIssuer       [1] GeneralNames            OPTIONAL,
    authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL  }

 KeyIdentifier ::= OCTET STRING
 

Authority key identifiers are not parsed by the X509CertSelector. Instead, the values are compared using a byte-by-byte comparison.

When the keyIdentifier field of AuthorityKeyIdentifier is populated, the value is usually taken from the SubjectKeyIdentifier extension in the issuer's certificate. Note, however, that the result of X509Certificate.getExtensionValue(<SubjectKeyIdentifier Object Identifier>) on the issuer's certificate may NOT be used directly as the input to setAuthorityKeyIdentifier. This is because the SubjectKeyIdentifier contains only a KeyIdentifier OCTET STRING, and not a SEQUENCE of KeyIdentifier, GeneralNames, and CertificateSerialNumber. In order to use the extension value of the issuer certificate's SubjectKeyIdentifier extension, it will be necessary to extract the value of the embedded KeyIdentifier OCTET STRING, then DER encode this OCTET STRING inside a SEQUENCE. For more details on SubjectKeyIdentifier, see setSubjectKeyIdentifier(byte[]).

Note also that the byte array supplied here is cloned to protect against subsequent modifications.

Parameters

authorityKeyID	the authority key identifier (or null)

See Also

• getAuthorityKeyIdentifier()

public void setBasicConstraints (int minMaxPathLen)

Sets the basic constraints constraint. If the value is greater than or equal to zero, X509Certificates must include a basicConstraints extension with a pathLen of at least this value. If the value is -2, only end-entity certificates are accepted. If the value is -1, no check is done.

This constraint is useful when building a certification path forward (from the target toward the trust anchor. If a partial path has been built, any candidate certificate must have a maxPathLen value greater than or equal to the number of certificates in the partial path.

Parameters

minMaxPathLen	the value for the basic constraints constraint

Throws

IllegalArgumentException	if the value is less than -2

See Also

• getBasicConstraints()

public void setCertificate (X509Certificate cert)

Sets the certificateEquals criterion. The specified X509Certificate must be equal to the X509Certificate passed to the match method. If null, then this check is not applied.

This method is particularly useful when it is necessary to match a single certificate. Although other criteria can be specified in conjunction with the certificateEquals criterion, it is usually not practical or necessary.

Parameters

cert	the X509Certificate to match (or null)

See Also

• getCertificate()

public void setCertificateValid (Date certValid)

Sets the certificateValid criterion. The specified date must fall within the certificate validity period for the X509Certificate. If null, no certificateValid check will be done.

Note that the Date supplied here is cloned to protect against subsequent modifications.

Parameters

certValid	the Date to check (or null)

See Also

• getCertificateValid()

public void setExtendedKeyUsage (Set<String> keyPurposeSet)

Sets the extendedKeyUsage criterion. The X509Certificate must allow the specified key purposes in its extended key usage extension. If keyPurposeSet is empty or null, no extendedKeyUsage check will be done. Note that an X509Certificate that has no extendedKeyUsage extension implicitly allows all key purposes.

Note that the Set is cloned to protect against subsequent modifications.

Parameters

keyPurposeSet	a Set of key purpose OIDs in string format (or null). Each OID is represented by a set of nonnegative integers separated by periods.

Throws

IOException	if the OID is invalid, such as the first component being not 0, 1 or 2 or the second component being greater than 39.

See Also

• getExtendedKeyUsage()

public void setIssuer (byte[] issuerDN)

Sets the issuer criterion. The specified distinguished name must match the issuer distinguished name in the X509Certificate. If null is specified, the issuer criterion is disabled and any issuer distinguished name will do.

If issuerDN is not null, it should contain a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure is as follows.

Name ::= CHOICE {
   RDNSequence }

 RDNSequence ::= SEQUENCE OF RelativeDistinguishedName

 RelativeDistinguishedName ::=
   SET SIZE (1 .. MAX) OF AttributeTypeAndValue

 AttributeTypeAndValue ::= SEQUENCE {
   type     AttributeType,
   value    AttributeValue }

 AttributeType ::= OBJECT IDENTIFIER

 AttributeValue ::= ANY DEFINED BY AttributeType
 ....
 DirectoryString ::= CHOICE {
       teletexString           TeletexString (SIZE (1..MAX)),
       printableString         PrintableString (SIZE (1..MAX)),
       universalString         UniversalString (SIZE (1..MAX)),
       utf8String              UTF8String (SIZE (1.. MAX)),
       bmpString               BMPString (SIZE (1..MAX)) }
 

Note that the byte array specified here is cloned to protect against subsequent modifications.

Parameters

issuerDN	a byte array containing the distinguished name in ASN.1 DER encoded form (or null)

Throws

IOException	if an encoding error occurs (incorrect form for DN)

public void setIssuer (X500Principal issuer)

Sets the issuer criterion. The specified distinguished name must match the issuer distinguished name in the X509Certificate. If null, any issuer distinguished name will do.

Parameters

issuer	a distinguished name as X500Principal (or null)

public void setIssuer (String issuerDN)

Denigrated, use {@linkplain #setIssuer(X500Principal)} or {@linkplain #setIssuer(byte[])} instead. This method should not be relied on as it can fail to match some certificates because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

Sets the issuer criterion. The specified distinguished name must match the issuer distinguished name in the X509Certificate. If null, any issuer distinguished name will do.

If issuerDN is not null, it should contain a distinguished name, in RFC 2253 format.

Parameters

issuerDN	a distinguished name in RFC 2253 format (or null)

Throws

IOException	if a parsing error occurs (incorrect form for DN)

public void setKeyUsage (boolean[] keyUsage)

Sets the keyUsage criterion. The X509Certificate must allow the specified keyUsage values. If null, no keyUsage check will be done. Note that an X509Certificate that has no keyUsage extension implicitly allows all keyUsage values.

Note that the boolean array supplied here is cloned to protect against subsequent modifications.

Parameters

keyUsage	a boolean array in the same format as the boolean array returned by X509Certificate.getKeyUsage(). Or null.

See Also

• getKeyUsage()

public void setMatchAllSubjectAltNames (boolean matchAllNames)

Enables/disables matching all of the subjectAlternativeNames specified in the setSubjectAlternativeNames or addSubjectAlternativeName methods. If enabled, the X509Certificate must contain all of the specified subject alternative names. If disabled, the X509Certificate must contain at least one of the specified subject alternative names.

The matchAllNames flag is true by default.

Parameters

matchAllNames	if true, the flag is enabled; if false, the flag is disabled.

See Also

• getMatchAllSubjectAltNames()

public void setNameConstraints (byte[] bytes)

Sets the name constraints criterion. The X509Certificate must have subject and subject alternative names that meet the specified name constraints.

The name constraints are specified as a byte array. This byte array should contain the DER encoded form of the name constraints, as they would appear in the NameConstraints structure defined in RFC 3280 and X.509. The ASN.1 definition of this structure appears below.

NameConstraints ::= SEQUENCE {
       permittedSubtrees       [0]     GeneralSubtrees OPTIONAL,
       excludedSubtrees        [1]     GeneralSubtrees OPTIONAL }

  GeneralSubtrees ::= SEQUENCE SIZE (1..MAX) OF GeneralSubtree

  GeneralSubtree ::= SEQUENCE {
       base                    GeneralName,
       minimum         [0]     BaseDistance DEFAULT 0,
       maximum         [1]     BaseDistance OPTIONAL }

  BaseDistance ::= INTEGER (0..MAX)

  GeneralName ::= CHOICE {
       otherName                       [0]     OtherName,
       rfc822Name                      [1]     IA5String,
       dNSName                         [2]     IA5String,
       x400Address                     [3]     ORAddress,
       directoryName                   [4]     Name,
       ediPartyName                    [5]     EDIPartyName,
       uniformResourceIdentifier       [6]     IA5String,
       iPAddress                       [7]     OCTET STRING,
       registeredID                    [8]     OBJECT IDENTIFIER}
 

Note that the byte array supplied here is cloned to protect against subsequent modifications.

Parameters

bytes	a byte array containing the ASN.1 DER encoding of a NameConstraints extension to be used for checking name constraints. Only the value of the extension is included, not the OID or criticality flag. Can be null, in which case no name constraints check will be performed.

Throws

IOException	if a parsing error occurs

See Also

• getNameConstraints()

public void setPathToNames (Collection<List<?>> names)

Sets the pathToNames criterion. The X509Certificate must not include name constraints that would prohibit building a path to the specified names.

This method allows the caller to specify, with a single method call, the complete set of names which the X509Certificates's name constraints must permit. The specified value replaces the previous value for the pathToNames criterion.

This constraint is useful when building a certification path forward (from the target toward the trust anchor. If a partial path has been built, any candidate certificate must not include name constraints that would prohibit building a path to any of the names in the partial path.

The names parameter (if not null) is a Collection with one entry for each name to be included in the pathToNames criterion. Each entry is a List whose first entry is an Integer (the name type, 0-8) and whose second entry is a String or a byte array (the name, in string or ASN.1 DER encoded form, respectively). There can be multiple names of the same type. If null is supplied as the value for this argument, no pathToNames check will be performed.

Each name in the Collection may be specified either as a String or as an ASN.1 encoded byte array. For more details about the formats used, see addPathToName(int type, String name) and addPathToName(int type, byte [] name).

Note: for distinguished names, specify the byte array form instead of the String form. See the note in addPathToName(int, String) for more information.

Note that the names parameter can contain duplicate names (same name and name type), but they may be removed from the Collection of names returned by the getPathToNames method.

Note that a deep copy is performed on the Collection to protect against subsequent modifications.

Parameters

names	a Collection with one entry per name (or null)

Throws

IOException	if a parsing error occurs

See Also

• getPathToNames()

public void setPolicy (Set<String> certPolicySet)

Sets the policy constraint. The X509Certificate must include at least one of the specified policies in its certificate policies extension. If certPolicySet is empty, then the X509Certificate must include at least some specified policy in its certificate policies extension. If certPolicySet is null, no policy check will be performed.

Note that the Set is cloned to protect against subsequent modifications.

Parameters

certPolicySet	a Set of certificate policy OIDs in string format (or null). Each OID is represented by a set of nonnegative integers separated by periods.

Throws

IOException	if a parsing error occurs on the OID such as the first component is not 0, 1 or 2 or the second component is greater than 39.

See Also

• getPolicy()

public void setPrivateKeyValid (Date privateKeyValid)

Sets the privateKeyValid criterion. The specified date must fall within the private key validity period for the X509Certificate. If null, no privateKeyValid check will be done.

Note that the Date supplied here is cloned to protect against subsequent modifications.

Parameters

privateKeyValid	the Date to check (or null)

See Also

• getPrivateKeyValid()

public void setSerialNumber (BigInteger serial)

Sets the serialNumber criterion. The specified serial number must match the certificate serial number in the X509Certificate. If null, any certificate serial number will do.

Parameters

serial	the certificate serial number to match (or null)

See Also

• getSerialNumber()

public void setSubject (X500Principal subject)

Sets the subject criterion. The specified distinguished name must match the subject distinguished name in the X509Certificate. If null, any subject distinguished name will do.

Parameters

subject	a distinguished name as X500Principal (or null)

public void setSubject (byte[] subjectDN)

Sets the subject criterion. The specified distinguished name must match the subject distinguished name in the X509Certificate. If null, any subject distinguished name will do.

If subjectDN is not null, it should contain a single DER encoded distinguished name, as defined in X.501. For the ASN.1 notation for this structure, see setIssuer(byte [] issuerDN).

Parameters

subjectDN	a byte array containing the distinguished name in ASN.1 DER format (or null)

Throws

IOException	if an encoding error occurs (incorrect form for DN)

public void setSubject (String subjectDN)

Denigrated, use {@linkplain #setSubject(X500Principal)} or {@linkplain #setSubject(byte[])} instead. This method should not be relied on as it can fail to match some certificates because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

Sets the subject criterion. The specified distinguished name must match the subject distinguished name in the X509Certificate. If null, any subject distinguished name will do.

If subjectDN is not null, it should contain a distinguished name, in RFC 2253 format.

Parameters

subjectDN	a distinguished name in RFC 2253 format (or null)

Throws

IOException	if a parsing error occurs (incorrect form for DN)

public void setSubjectAlternativeNames (Collection<List<?>> names)

Sets the subjectAlternativeNames criterion. The X509Certificate must contain all or at least one of the specified subjectAlternativeNames, depending on the value of the matchAllNames flag (see setMatchAllSubjectAltNames).

This method allows the caller to specify, with a single method call, the complete set of subject alternative names for the subjectAlternativeNames criterion. The specified value replaces the previous value for the subjectAlternativeNames criterion.

The names parameter (if not null) is a Collection with one entry for each name to be included in the subject alternative name criterion. Each entry is a List whose first entry is an Integer (the name type, 0-8) and whose second entry is a String or a byte array (the name, in string or ASN.1 DER encoded form, respectively). There can be multiple names of the same type. If null is supplied as the value for this argument, no subjectAlternativeNames check will be performed.

Each subject alternative name in the Collection may be specified either as a String or as an ASN.1 encoded byte array. For more details about the formats used, see addSubjectAlternativeName(int type, String name) and addSubjectAlternativeName(int type, byte [] name).

Note: for distinguished names, specify the byte array form instead of the String form. See the note in addSubjectAlternativeName(int, String) for more information.

Note that the names parameter can contain duplicate names (same name and name type), but they may be removed from the Collection of names returned by the getSubjectAlternativeNames method.

Note that a deep copy is performed on the Collection to protect against subsequent modifications.

Parameters

names	a Collection of names (or null)

Throws

IOException	if a parsing error occurs

See Also

• getSubjectAlternativeNames()

public void setSubjectKeyIdentifier (byte[] subjectKeyID)

Sets the subjectKeyIdentifier criterion. The X509Certificate must contain a SubjectKeyIdentifier extension for which the contents of the extension matches the specified criterion value. If the criterion value is null, no subjectKeyIdentifier check will be done.

If subjectKeyID is not null, it should contain a single DER encoded value corresponding to the contents of the extension value (not including the object identifier, criticality setting, and encapsulating OCTET STRING) for a SubjectKeyIdentifier extension. The ASN.1 notation for this structure follows.

SubjectKeyIdentifier ::= KeyIdentifier

 KeyIdentifier ::= OCTET STRING
 

Since the format of subject key identifiers is not mandated by any standard, subject key identifiers are not parsed by the X509CertSelector. Instead, the values are compared using a byte-b